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Mallin & Seidel Orthopaedic Oncology Pllc

Orthopaedic Surgery Physician in Scottsdale, AZ · enumerated 2006 · authorized official Matthew Seidel, Authorized Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255343471

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Registry record

Entity type Organization (Type 2)
Legal business name Mallin & Seidel Orthopaedic Oncology Pllc
Other name <Unavail>
Practice address 9700 N 91st St, Scottsdale, AZ, 85258
Phone (602) 258-8500
Fax (602) 258-8510
Enumeration date Aug 13, 2006
Last updated in NPPES Jul 21, 2022

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 32887 (AZ) Primary

Authorized official

Name Matthew Seidel
Title Authorized Partner
Phone (602) 258-8500

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Mallin & Seidel Orthopaedic Oncology Pllc?
NPPES lists Matthew Seidel (Authorized Partner) as the authorized official for this organization.
What is the NPI number for Mallin & Seidel Orthopaedic Oncology Pllc?
The NPI for Mallin & Seidel Orthopaedic Oncology Pllc is 1255343471, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.